What type of Information Depicted by ECO

Whenever change is required, CCB decide allow to happen or deny. If it is decided that change is necessary it is needed ECO engineer change order is generated. What types of information are depicted by ECO?

An ECO defines the change to be made, the constraints that must be respected, and the criteria for review and audit. The change control process thus involves the following steps.
1) need for change is recognized
2) change request from user
3) developer evaluates
4) change report is generated
5) change control authority (CCA) decides
6) Either step 6a or 6b is performed. Steps numbers 7 to 17 are performed only if step 6b is performed.
...a)
.....i) change request is denied
.....ii) user is informed
.....iii) no further action is taken.
...b) assign people to SCIs

7) check-out SCIs
8) make the change
9) review/audit the change
10) check-in SCIs
11) establish a “baseline” for testing
12) perform SQA and testing activities
13) check-in the changed SCIs
14) promote SCI for inclusion in next release
15) rebuild appropriate version
16) review/audit the change
17) include all changes in release Thus, a change is incorporated in a controlled and strict manner.